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A072438 as a simple table

na(n)
11
22
33
44
51
66
77
88
99
102
1111
1212
131
1414
153
1616
171
1818
1919
204
2121
2222
2323
2424
251
262
2727
2828
291
306
3131
3232
3333
342
357
3636
371
3838
393
408
411
4242
4343
4444
459
4646
4747
4848
4949
502
513
524
531
5454
5511
5656
5757
582
5959
6012
611
6262
6363
6464
651
6666
6767
684
6969
7014
7171
7272
731
742
753
7676
7777
786
7979
8016
8181
822

[1,2,3,4,1,6,7,8,9,2,11,12,1,14,3,16,1,18,19,4,21,
 22,23,24,1,2,27,28,1,6,31,32,33,2,7,36,1,38,3,8,1,
 42,43,44,9,46,47,48,49,2,3,4,1,54,11,56,57,2,59,
 12,1,62,63,64,1,66,67,4,69,14,71,72,1,2,3,76,77,6,
 79,16,81,2]